Interact with your mouse. Click the window to open/close. Click the candle to light on/put out. And of course, type A or B when Scratch Cat talks to you! Type the LETTER. (I'm not yelling).
I know that it isn't Christmas, but I felt like doing it. :P Meet Scratch Cat again! All script done by me! Music from here: https://www.youtube.com/watch?v=Mo9G9RQbrbo